Education Technology

Math TODAY for TI-Navigator™ System - USA Money in Circulation

Published on 04/19/2005

Activity Overview

Students will determine the approximate number of $20 bills in circulation as of December 31, 2001, using percent and total number of bills from the USA TODAY Snapshot "USA money in circulation." Students will write their answers in decimal and scientific notation. The Science Tools App will be used to convert from one unit of measure to another.

Before the Activity

If you are using the TI-Navigator System with the TI-73 you will need the attached .pdf file.

  • Setup your TI-Navigator™ System
  • Make sure you are familiar with the following functions: Send to Class, Collect from Class, Screen Capture, and Quick Poll
  • Your students will need a TI-83 Plus or TI-84 Plus graphing calculator, either working in pairs or individually
  • Download the attached activity resource files from all three sections to your computer

  • Recommendations:
  • Multimedia Projector for sharing the Quick Polls and Screen Captures with your students
  • TI Keyboards for students to easily answer the LearningCheck™ assessment questions
  • During the Activity

    Students will:

  • Express numbers in scientific notation
  • Determine the percent of a number
  • Convert from one unit of measure to another
  • Determine the volume of a rectangular solid


  • Directions
  • Distribute the Student Edition PDF file to your class
  • Follow the activity procedures outlined in the Teacher document
  • You may use the Graphic PDF file to display a large image of the USA TODAY graphic during the activity
  • After the Activity

    Access your students' understanding by using Send to Class, LearningCheck™ App and Class Analysis.